Riding-cultivator.



A. E. KISTLBR.y

RIDING' GULTIVATOR.

APPLICATION FILED APB.. 5,1909.

Patented July 20. 1909.

fiiifliiiii vwentoz I attorney A. E. KISTLER.

RIDING cULTIvATg. K APPLIGATION FILED APR. 5.1909.

928,769. Patented July 2o. 1909 ZSHBETS-SHBET 2 nuenoz imrrnn sTATEs PATENT OFFICE.

ALPHEUS E. KISTLER, OF CARROLL, OHIO.

RIDING-CULTIVATOR.

ligures of reference marked thereon, which form' a part of this specification.

rlfhis invention relates to new and useful improvements 1n riding or sulky cultivators and the object in view is to produce a simple and eiiicient apparatus of this nature so arranged that the gang plows may be adj usted to cut'at any depth and the adjusting lever thrown into' any position without changing the adjustment of the pawl and still maintaining the uniformity of the adjustnient of the cutting depth of the gangs.

The invention consists further inthe provision of a riding cultivator so arranged that the gang plows, in the event of their comin into contact with an obstruction, may yield without effecting any of the other parts of the apparatus and return to their normal position after passing the obstruction.

The invention comprises further various other details of construction, combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended claims.

My invention is illustrated in the accompanying drawings, in which Figure l is a side elevation of my improved riding cultivator, showing the plows at their lowest throw in solid lines and in raised positions in dotted lines. Fig. 2 is a detailed perspective view of a part of the apparatus for adjusting the depth at which the plows are to cut. Fig. l3 is a detailed perspective view of a part of the apparatus. Fig. i is a detailed perspective View showing means for allowing the plows to yield in coming in contact with an obstruction without effecting the other operative parts of the apparatus, and Fig. 5 is a detailsectional view through a swiveled connection.

Reference now being had to the details of the drawings by characters, A designates a drop axle of the cultivator, which is of the usual construction, and upon which the Specifica-tion of Letters Patent.

Application filed April 5, 1909.

Patented Ju1y`2o`, 1909.

Serial No. 488,076.

wheels A are journaled, one of which is shown in Figl of the drawings, and B designates the frame of the cultivator. A series of gang plows C are fastened to the plow beams C and each of said plow beams has a bearing aperture for the reception of horizontally disposed apertures D of the angled bar D which is of the usual construction upon cultivators of this nature.

Mounted upon a rock shaft E, shown in Fig. 2 of the drawings, said shaft being journaled in the lugs E upon the frame of the apparatus, is a block F, which is adjustably mounted upon the shaft by means of a set screw F2 passing through a collar, as shown clearly in Fig. 4 of ther drawings. Said block has swivelly connected thereto a -clevis G, and H designates a rod having apertures H in one end through which a pivot pin H2 passes, said pin being carried by the clevis member G' and affording means whereby said rod H may have a longitudinal adjustment. One end of said rod H has a` hook H3 which engages an eye H4 fastened to the gang plow beams C, as shown clearly in Fig. l of the drawings. Mounted upon said frame is a yoke J having upright arms J. which are apertured to receive the pivot pins J2 and integral with said rack is a projection J3 forming a stop.

A segment rack, designated by letter K, has a shank portionforming two arms O and G whichare pivotally mounted upon the pivot pin J2, and L designates a lever which is pivotally mounted upon one of the pivot pins J2 and has a swinging movement within a slot K2, said movement being limited by the ends of the slot. A spring-pressed pawl N is mounted upon said lever and is adapted to engage one or the other of the notches of said segment rack, as shown clearly in Figs. l and 2 of the drawings. Upon reference to Fig. 3 of the drawings, it will be noted that the shank portion of saidtoothed segment rack has two arms, designated by letters@ and O, and said arms havelaterally projecting portions O'Z which are apertured for the reception of the rock shaft Q which latter is apertured as at Q for the reception of the bolt Q2 having a threaded portion Q3 designed to engage the nut P which is fastened to the coiled spring P. A link I is connected to one end of the spring P and its other end adj ustably mounted upon a pivot which may be held in one or another of the apertures I2, formed the stop J 3 serves t'o limittlie throw ofthe ment to be imparted to thebar H which is .swilveled to thelblock l" and will cause said block to rock withxthe shaft upon which it `.with its shaft, the springP will be put n at `which it is set. .Should it be desired to Acause a greater pressure to be exertedupon lever to the positiony shown in" dotted lilies in Fig. l ot the drawings in which position ,rack has a projection O3 adapted. to contact shown in dotted lines in' Fig. lV of the draw-v whenthe .pawl engages theirack to throw I the gangtplows to cut at different depths. 'l ln.the event ot' .the gang plow's coming in `eillecting the. operating lever or any ofthe.

' nut P aiid,'after theplow .has passed by the obstruction; the recoil of the,` spring will spring in the event of the plow encountering `the rod Hand the clevis,'fprovision is made .the gang plows from pthe f, ground for any in the walls of the recess in the block F, asA shown clearly in Fig; '-L ofathedrawings.` A rod S has one end bent to form an elongated hook S', shown clearly iii-Fig. tfoft the drawings, and which is adapted tore--V- `ceive apivotipin S?.inounted.in .thenwalls or' the recess in the block F. .The arms. 0, ttor-ming a part ot" the shaft of the segment with ,the marginal edgejot' the horizontally disposed portion of .the rack J to limit the swinging movement of the segment rack in.one direction', it being understood that lever in `one; ;lirection or inL ,the position ings.

The. operation of the apparatus is asfollows :ifilheii it is desired to set the gang4 plows to cut any particularl depth, the-lever li is swunguipon its pivot and the springpressed pawl made to engage any particular notch or theysegmentrack, it; being under, stood that the notchy or" said rack will serve contact with an obstruct-ion of. any kind,2the tendency would be to cause the gang ploWs toi dig' deeper into the ground and such movement will cause a longitudinal moveis mounted independent of the rod S,` the latter :remaining at rest and therefor-snot operative parts thereof. As said block rocks under tension, said Vtension beingregulated by the adjustment'of' the bolt within said fause the'plowto return to its normal position and continue cutting' the uniform depth vthe gangplow through the medium of the harder soil, the lend of the link I may be Sadjusted in the forward aperture 'ofithe block,` thus increasing the tension :of the spring, Vas wil-l. be readily understood. By reason oic the swiveled vconnection between whereby the gang'plows may have a. slight` vlateral play without in any .way straining any part of theT apparatus.

Iir the event'of it being desired to raise purpose and hold thev saine in such raised posit-ions, it may bedone by throwingthe it will be held by the buckling of the spring Pf, it-being noted that, when the lever is in .Suchtpositiong;the@ pivotal pointbetween the lever and the rod S, the point J2 and the pointt of connection between the rod S and `and the block F will be in the saine plane,

preferablyl horizontal. In fireturning the ,lever L to its normal upright position to lower the gangf plows, the moment the point of pivotal'connection between thebar S and the lever. L coinesabove the pivotalxpoint J2 the spring-buckles and the tension' ot' the spigiiiglivillwserve to automatically throw said lever to'the position shownfin solid 'lines inFig. 1.5 Thissaine automatic action takes Iplacealso iiitlirowing the lever :down to the position shown in dotted lines, as the spring againrliu'ckleswhen the nparts before described approacli their horizontal positions.

The downward movement of' the lever is limited by theedgeoi` the 'latter coming into Contact with the. upturnedend of the stop 'J3 Vforming aprojection.' Oiot` the rack J and the swinging inoveinentfof the lever in the opposite. direction limited by 'the proj'ectionA Gcoming in contact with theY oppositefedge of tlie bottom' ofv said'racl J. @By

.the provision-0f the-'particular .means shown vvclearly in Fig. 3.0i tlie'drawings in which the rocl shaftt throughwhich the bolt- Q2 passes being mounted inthe projecting part Aof the arms? O and" O", it will be :notedthat the spring lwill be causedtobuckle quickly as the .bolt israisedlabove or lowered below the'pivotal ends 'ot'. the rock: shaftand it will also be noted that, in whatever position the ylever may be positioned, said rock-shaft,

which is ,preferably rectangular in cross section, will be held'ledgewise in a vertical plane.

.iVhat l" claim to be `new is 15 Ariding cultivatorcomprising afraine, gangfplows pivotally mounted thereon, a rock shaft, a block .ix'ed to, said shaft, connections between saidblocltand plows, a segmentiacl; pivotally inounted'upon., .id frame, tension .means intermediate said plows and rack, apivotal lever, a pawl carried bythe :latter` and adapted to engage the .teeth lof saidrack, a rod attached. to said lever an'd havingsliding pivotal connections with said ploivs, as set forth.

2) A riding cultivator comprising a` traine, gang. plows `pivot-'ally mounted thereon, a rock shaft, a block fixed to said shaft,swivel connections between said .block and-plows.

Clavis-shaped member swiveled to said block,

a bar adjustahly connected to said swivel member and adapted to be connected to the gang plows, a segment rack pivotally mounted upon said frame, tension means intermediate said plows and rack, a pivotal lever, a pawl carried by the latter and adapted to engage the teeth of said rack, a rod attached to said lever and having sliding pivotal connections with said plows, as set forth.

4. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a block fixed to said shaft, connections between said block and p ows, a segment rack pivotally mounted upon said frame, tension means intermediate said plows and rack, a pivotal lever, a pawl carried by the latter and adapted to engage the teeth of said rack, a rod attached to said lever and having sliding pivotal connections with said plows, and means for limiting the swinging movement of said lever, as set forth.

5. A riding cultivator comprising a frame,

f gang plows pivotally mounted thereon, a

rock shaft, a block fixed to said shaft, connections between said block and plows, a segment rack pivotally mounted upon said frame, tension means intermediate said plows and rack, a pivotal lever, a pawl carried by the latter and adapted to engage the teeth of said rack, a rod attached to said lever and having sliding pivotal connections with said plows, a stop against which said lever is adapted to contact to limit its throw in one direction, and a projection upon the segment rack adapted to Contact with a portion of the frame to limit the movement of the lever in the opposite direction, as set forth.

G. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a block fixedq to said shaft, connections between said block and plows, a

segment rack pivotally mounted upon saidV frame, a shaft ournaled in the arms forming the shank portion of said rack, a bolt connected to said shaft, a spring, a nut'fastened thereto and through which the threaded portion of said bolt passes, connections between the opposite end of said spring and said block, a pivotal lever upon the frame, a rod attached to said lever and having sliding pivotal connection with said block about the shaft upon which it is mounted, a pawl carried by the lever and adapted to engage the teeth of said rack, said lever, as it is swung upon its pivot, designed to cause the spring to buckle as the end of the bolt connected to said shaft rises above or passed beneath the point of pivotal connection of said rack, as set forth.

7. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a block fixed to said shaft, connections between said block and plows, a

segment rack pivotally mounted upon said frame, the shank portion of said rack having arms with lateral projections which are apertured, a rock shaft journaled in said apertures, a bolt connected to said rock shaft upon the rack, a. coiled spring, a nut fixed thereto and through which the threaded portion of said bolt passes, a link connected to the other end of said spring and having pivotal adjustment to said block below the shaft upon which it is mounted, a pivotal lever, a rod attached thereto and having sliding pivotal connection with said block above the shaft upon which it is mounted, a spring-pressed pawl carried by the lever and adapted to engage the teeth of said segment rack, `and means for limiting the throw of said lever, as set forth.

8. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a block fixed to said shaft, connections between said block and plows, a segment rack pivotally mounted upon said frame, the shank portion of said rack having arms with lateral projections which are apertured, a rock shaft journaled in said apertures, a bolt connected to said rock shaft upon the rack, a coiled spring, a nut fixed thereto and through which the threaded port-ion of said bolt passes, a link connected to the other end of said spring and having pivotal adjustment to said block below the shaft fupon which it is mounted, a pivotal lever, a rod attached at one end thereto and having an elongated hook Aat vits other end, a pin carried by said block and about which the hooked end of said rod passes, a pawl carried by said lever and adapted to engage the teeth of said segment rack, as set forth.

9. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a recessed block adjust-ably mounted upon said shaft, swivel connections between said block and the gangplows, a segment rack pivotally mounted upon the frame, a shaft carried by said segment rack, a bolt passing through said shaft upon the segment rack, a coiled spring, a nut fixed thereto and through which the threaded portion of said bolt passes, a link connected to the other end of said spring and having adjustable pivotal connection with said block below the shaft upon which it is mounted, a pivotal lever, a rod attached thereto and having an elongated hook, a pin carried by said block, said hook positioned in the recess in the block and engaging said pin, and a pawl carried by the lever and engaging the teeth of said segment rack, as set forth.

l0. A riding cultivator comprising a frame, gang plows pivotally mounted thereon, a rock shaft, a recessed block adjustably mounted upon said shaft, swivel connections between said block and the plows, a yoke fastened to the frame and having up r wai'dlyextending armena segment l'llolelmv plvotallly colmeeted I losaidI uprighl, projec-4 tions! of the Woke,- an` integral `stop. upon A the 5.lzl-ttel" against 1u'hclnthe segment wel( ls' A 5:lalzlpled-to conl'zlet- :ls lt. moves to lts llmltv ln` Monedirection,.tllevpl'ojectio-n u-pon one: of the :ll'uls of. szlldsheftvdeelgned to ooncac Wltll i fl-he :llune tolilmll: the /nloxement of-l'he l'flel;

10 in Ithe opposite:direction, :l5 Shaft seatediu mplmect'lons,upon: szld` arms, llb'olt passing through nui `zlp'ell'ul'e: inx Snif-l Shaft upon 1 the s `ruck,zplolled Snoring',:annuiiiXed-tl1e1'elo` and s through :Whielllhe threaded pol'tlonty of said 15 .holt passes, :l link lxed townel endA of the Lfilezsefee spring undhllvlnp; adjustable connections wllh s-.ud block, al plvotal level' mounted upon one of the plojeotlons-o' suld yoke, il

vl'ocl-zlttllol1ed at one end to said level., il pnl ll 3on said ls/lool;L du ted to be en'ag'edb 1 il 20 hook upon szlidmod, und zlspring-pressed pzlwl rmounled upon said level' and zlclzlpted lo engage the teeth ofj said segment rack, as 

